Not sure about the gas cap (although it IS nice), but this '68 Barracuda appears to have the 'Formula S' package as indicated by the 'S' badge under the Barracuda side nameplate. (of course the wheels are definitely not stock).

Back in the day a friend had a '68 'cuda convertible with a 318 and no special package, but his had the same nice gas cap!

Ah yes - This is a Magnette - but the identifying bits of chrome that would distinguish a ZA from a ZB are missing from the front wings. My ZA has chrome from thefront doors down in a curve over the front wings to the bumpers, while a ZB had a simpler straight flash from the door to a point below the wing mirrors. This is quite common - oftern the chrome got damaged, and when cars were resprayed or repaired after accidents it got taken off anyway. My guess is a ZA though although I'm not sure why...

The Varitone version of the ZB didn't have either wing flash, but that had a chrome trim along the car below the windows - about three inches below the door handles where the car bulges out - it seperated the two-tone colour scheme (although not all Varitones were two-tone). This isn't one of those though if it doesn't have the larged back window.

The amber flashers are an add-on, as the original trafficators are still visible on the door pillars. Car has been re-registered - that number series wasn't issued in period, but is a spare series used for restored cars etc needing a new number.

Reminds me of my next door neighbors Baracuda back in the 80s & my brother giving them a hard time about the wife having an old car. (Hubby had a brand new Porche). Now we laugh as adults cause we realize it was a classic and not just an old car!